update GH actions to change go version in go.mod file

.github/actions/pr-to-update-go/README.rst

@@ -45,8 +45,9 @@ Environment Variables
 +----------------------------+----------------------------------------------------------------------------------+
 | ``GO_VERSION_FILE``        | Required. The file in the repo containing the version of Go used by the repo.    |
 +----------------------------+----------------------------------------------------------------------------------+
-
-
+| ``GO_MOD_FILE``            | Optional. The go.mod file in the repo containing the version of Go used by the   |
+|                            | repo. If not provided, the action will not update the go.mod file.               |
++----------------------------+----------------------------------------------------------------------------------+
 Outputs
 =======
 
@@ -66,6 +67,7 @@ Example usage
 	    GIT_AUTHOR_NAME: asf-ci-trafficcontrol
 	    GITHUB_TOKEN: ${{ github.token }}
 	    GO_VERSION_FILE: GO_VERSION
+	    GO_MOD_FILE: go.mod
 
 Tests
 =====

.github/actions/pr-to-update-go/pr_to_update_go/constants.py

@@ -25,6 +25,8 @@
 	ENV_ENV_FILE                - The repository-relative path to an environment file containing
 	                              a line setting the variable GO_VERSION to the Go version
 	                              (e.g. GO_VERSION=3.2.1)
+	ENV_GO_MOD_FILE             - The repository-relative path to the go.mod file containing the
+	                              version of Go used by the repo (e.g. go 3.2.1).
 
 Miscellaneous:
 
@@ -71,6 +73,13 @@
 containing the Go version.
 """
 
+ENV_GO_MOD_FILE: Final = 'GO_MOD_FILE'
+"""
+The name of the environment variable set to repository-relative path to the
+go.mod file containing the version of Go used by the repo (e.g. go 3.2.1).
+"""
+
+
 ENV_ENV_FILE: Final = 'ENV_FILE'
 """
 The name of the environment variable set to repository-relative path to an

.github/actions/pr-to-update-go/pr_to_update_go/go_pr_maker.py

@@ -50,6 +50,7 @@
 	GO_REPO_NAME,
 	RELEASE_PAGE_URL,
 	ENV_GO_VERSION_FILE,
+	ENV_GO_MOD_FILE,
 	ENV_GIT_AUTHOR_NAME,
 	GIT_AUTHOR_EMAIL_TEMPLATE,
 	GO_VERSION_KEY,
@@ -375,7 +376,7 @@ def set_go_version(self, go_version: str, commit_message: str,
 		Makes the commits necessary to change the Go version used by the
 		repository.
 
-		This includes updating the GO_VERSION and .env files at the repository's
+		This includes updating the GO_VERSION, GO_MOD, and .env files at the repository's
 		root.
 		"""
 		master_tip = self.repo.get_branch('master').commit
@@ -388,11 +389,18 @@ def set_go_version(self, go_version: str, commit_message: str,
 		with open(go_version_file, 'w') as go_version_file_stream:
 			go_version_file_stream.write(f'{go_version}\n')
 		env_file = getenv(ENV_ENV_FILE)
+		go_mod_file = getenv(ENV_GO_MOD_FILE)
+		if go_mod_file:
+			with open(go_mod_file, 'r') as go_mod_file_stream:
+				content = go_mod_file_stream.read()
+				updated_content = re.sub(r'go \d+\.\d+(\.\d+)?', f'go {go_version}', content)
+			with open(go_mod_file, 'w') as go_mod_file_stream:
+				go_mod_file_stream.write(updated_content)
 		env_path = PurePath(os.path.dirname(env_file), ".env")
 		set_key(dotenv_path=env_path, key_to_set=GO_VERSION_KEY, value_to_set=go_version,
 			quote_mode='never')
 		return self.update_files_on_tree(head=master_tip, files_to_check=[go_version_file,
-			env_file], commit_message=commit_message, source_branch_name=source_branch_name)
+			env_file, go_mod_file], commit_message=commit_message, source_branch_name=source_branch_name)
 
 	def update_files_on_tree(self, head: Union[Commit, GitCommit], files_to_check: list[str],
 			commit_message: str, source_branch_name:

.github/workflows/pr-to-update-go.yml

@@ -33,6 +33,7 @@ jobs:
       PR_GITHUB_TOKEN: ${{ secrets.ASFCI_TOKEN }}
       GO_VERSION_FILE: GO_VERSION
       ENV_FILE: .env
+      GO_MOD_FILE: go.mod
     steps:
       - name: Checkout repo
         uses: actions/checkout@master

go.mod

@@ -17,7 +17,7 @@ module github.com/apache/trafficcontrol/v8
 // specific language governing permissions and limitations
 // under the License.
 
-go 1.23.0
+go 1.23.4
 
 require (
 	code.cloudfoundry.org/bytefmt v0.0.0-20211005130812-5bb3c17173e5